所以我是C ++的新手，我目前正在为一项作业进行“死亡之战”游戏，而且我被卡住了。
基本上，你作为玩家将获得使用每种武器一定次数：佳能3次，手榴弹4次。步枪是无限的。
当我使用佳能3次时效果很好，然后在我的经典外出后选择手榴弹时工作一次。如果我再次尝试使用手榴弹，它会给我一条消息，说明我没有使用手枪。我的第二支步枪使用也会发生同样的情况。
我似乎无法找到原因，或者如何纠正它。如果有人能指出我正确的方向，我将不胜感激！
这是我的代码：
#include <iostream>
#include <ctime>
#include <cstdlib>
#include <iomanip>
using namespace std;
int main()
{
int PlayerHealth = 100,
CompHealth = 100,
Turn = 0,
WeaponChoice,
CompWeapon,
Cannon_Damage = 0,
Grenade_Damage = 0,
Rifle_Damage = 0;
int PlayerCanonUse = 3;
int PlayerGrenadeUse = 4;
int CompCanonUse = 3;
int CompGrenadeUse = 4;
srand(static_cast<int>(time(0)));
char yn;
do
{
do
{
if(Turn == 0)// Player Turn
{
cout << "\nWhich weapon will you use? Choose 1, 2, or 3.\n";
cout << "1. Cannon\n";
cout << "2. Grenade\n";
cout << "3. Rifle\n\n";
cin >> WeaponChoice;
//Validate weapon choice
if ((WeaponChoice < 1 || WeaponChoice > 3)){
cout << "\nSilly you. That's not one of the options. Try again.\n";
cin >> WeaponChoice;
}
if (PlayerCanonUse <= 0){
cout << "Sorry, you have used all of your canons. Choose a different weapon.\n";
cin >> WeaponChoice;
}
if (PlayerGrenadeUse <= 0){
cout << "Sorry, you have used all of your grenades. Choose a different weapon.\n";
cin >> WeaponChoice;
}
switch(WeaponChoice)
{
case 1: // player chooses to attack with cannon
Cannon_Damage = (10 + rand() % 6);
cout << "\nYou chose a cannon." << endl;
CompHealth = CompHealth - Cannon_Damage;
cout << setw(10) << Cannon_Damage << " damage!" << endl;
cout << setw(10) << "YOUR HEALTH: " << PlayerHealth << endl;
cout << setw(10) << "OPPONENT HEALTH: " << CompHealth << endl;
PlayerCanonUse = PlayerCanonUse - 1;
break;
case 2:
Grenade_Damage = (7 + rand() % 13);
cout << "\nYou chose a grenade." << endl;
CompHealth = CompHealth - Grenade_Damage;
cout << Grenade_Damage << " damage!" << endl;
cout << "YOUR HEALTH: " << PlayerHealth << endl;
cout << "OPPONENT HEALTH: " << CompHealth << endl;
PlayerGrenadeUse = PlayerGrenadeUse - 1;
break;
case 3:
Rifle_Damage = (3 + rand() % 9);
cout << "\nYou chose a Rifle." << endl;
CompHealth = CompHealth - Rifle_Damage;
cout << Rifle_Damage << " damage!" << endl;
cout << "YOUR HEALTH: " << PlayerHealth << endl;
cout << "OPPONENT HEALTH: " << CompHealth << endl;
break;
}
}
Turn == 1; // Computer Turn
CompWeapon = rand() % 3;
switch(CompWeapon)
{
case 1:
Cannon_Damage = (10 + rand() % 6);
cout<<"\nYour opponent used a cannon, and you lost " << Cannon_Damage << " HP." << endl;
PlayerHealth = PlayerHealth - Cannon_Damage;
cout << "YOUR HEALTH: " << PlayerHealth << endl;
cout << "OPPONENT HEALTH: " << CompHealth << endl;
CompCanonUse = PlayerCanonUse - 1;
break;
case 2:
Grenade_Damage = (7 + rand() % 6);
cout<<"\nYour opponent used a grenade, and you lost " << Grenade_Damage << " HP." << endl;
PlayerHealth = PlayerHealth - Grenade_Damage;
cout << "YOUR HEALTH: " << PlayerHealth << endl;
cout << "OPPONENT HEALTH: " << CompHealth << endl;
CompGrenadeUse = CompGrenadeUse - 1;
break;
case 3:
Rifle_Damage = (3 + rand() % 10);
cout<<"\nYour opponent used a rifle, and you lost " << Rifle_Damage << " HP." << endl;
PlayerHealth = PlayerHealth - Rifle_Damage;
cout << "YOUR HEALTH: " << PlayerHealth << endl;
cout << "OPPONENT HEALTH: " << CompHealth << endl;
break;
}
}
while(PlayerHealth >= 0 && CompHealth >= 0); //loops while both players are alive
if (CompHealth < 0)
cout << "Congratulations! You won!" << endl;
if (PlayerHealth < 0)
cout << "Darn, you lost. Game over." << endl;;
std::cout << "That was fun. Would you like to play again? Enter Y or N:" << std::flush;
} while(std::cin >> yn && (yn == 'Y' || yn == 'y'));
}
另外，如果我不遵守c ++约定，请原谅我，我还是新手！任何关于它的指针都会很好。
答案 0 :(得分：1)
问题出在这里。
if (PlayerCanonUse <= 0){
cout << "Sorry, you have used all of your canons. Choose a different weapon.\n";
cin >> WeaponChoice;
}
if (PlayerGrenadeUse <= 0){
cout << "Sorry, you have used all of your grenades. Choose a different weapon.\n";
cin >> WeaponChoice;
}
即使您没有选择武器，也会检查这两个if语句。 这可以用
之类的东西来解决 if (WeaponChoice == 1 && PlayerCanonUse <= 0){
cout << "Sorry, you have used all of your canons. Choose a different weapon.\n";
cin >> WeaponChoice;
}
if (WeaponChoice == 2 && PlayerGrenadeUse <= 0){
cout << "Sorry, you have used all of your grenades. Choose a different weapon.\n";
cin >> WeaponChoice;
}
在交换机内进行检查会更简单。